QUESTION 3 Consider the database schema below:    Company (CompnayID: integer, CompnayName: String (unique), address) Department (DepartmentID: Integer, DepartmentName: String, CompanyID: Integer) Employee (ID:integer; name:String, DepartmentID:intger (not null))   Is it valid for an employee to work in two different departments?          No, violates entity Integrity constraint          No, violates key constraint.          Yes.            No, violates domain constraints.            No, violates referential integrity constraint.

Q: QUESTION 2 Consider the database schema below. Fruit (ID: integer, Name: String (unique)) Vitamin…

A: Two Fruits can't have same name even the Fruit ID is different. Because, Name field is having UNIQUE…

Q: Consider the given relational schema: Suppliers(sid:integer, sname:string, city:string,…

A: To Do: To choose the correct option.

Q: Consider the database schema below for hotels in countries. A country have many hotels, and the same…

A: Lets see the solution.

Q: The following relational schema forms part of an Employees database. The primary keys are underlined…

A: Note: As per the policy I answered as much as I can. Please resubmit the question separately which…

Q: onsider the database schema below for hotels in countries. A country have many hotels, and the same…

A: QUESTION 15 Consider the database schema below for hotels in countries. A country have many…

Q: The following exercises are based on the BITS database user views as designed in Your Turn 6-1 in…

A:

Q: uestion Consider the following database schema. CUSTOMER (CID, NAME, STREET, CITY, STATE, AGE) SALE…

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Q: Question#3 Consider the following relations for a database that keeps track of items supplied by…

A: We are given two database tables: Vendor and Item and we are asked about the Degree, cardinality,…

Q: Consider a database with the following relations: Employee (Employee ID, Name, salary, startDate)…

A: The following SQL Query can be broken down into sub-queries:   Sub-Query 1: Display Employees by…

Q: Being a database expert create fragments of the given relation(table) “student” on the basis of the…

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Q: QUESTION 2 Consider the database schema below:    Company (CompnayID: integer, CompnayName:…

A: Definition of Candidate Key in DBMS: Candidate keys are super keys that don't have any redundant…

Q: that consists of five tables. Primary keys are (BOLD and Italicized). Attributes with the same names…

A:

Q: Consider the following database design:   Also consider the virtual table ASSIGNMENTS, which…

A: Structured Query Language : SQL represents Structured Query Language  SQL allows you to get to and…

Q: Consider the insurance database of Figure 3.17, where the primary keys areunderlined. Construct the…

A: Structured Query Language (SQL) to update the damage amount for the car with license plate…

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A: The given problem is related to database SQL queries where the database and sample data is given.…

Q: Consider the database schema below for cities in countries. A country have many cities, and the same…

A: Database schema provides the logical view of the database with the relation between them associated.…

Q: Question 3 a) Normalize table 1 to a set of Third Normal Form (3NF) relations. Your answer should…

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Q: The following exercises are based on the BITS database user views as designed in Your Turn 6-1 in…

A:

Q: Consider the relational database of Figure 3.19, where the primary keys areunderlined. Give an…

A: select e.ID, e.person_name, e.city from employee e, works w where e.ID = w.ID and company_name =…

Q: Consider the relational database of Figure 3.19, where the primary keys areunderlined. Give an…

A: Solution: Following is the SQL query that gives the name of the each company's whose employees have…

Q: Consider the following database schema and specify the following queries or views in SQL.…

A: a)select SSN,name from EMPLOYEE where SSN in(select SSN from WORKON group by SSN having…

Q: For developing our queries, we will be using the following relational schema: Student(SID, name,…

A: Q1.  Here we need to join relation Course and Offering and use selection operator to select only…

Q: Company (CompnayID: integer, CompnayName: String (unique), address) Department (DepartmentID:…

A: Department is a table with columns DepartmentID of Integer type, DepartmentName of String type and…

Q: Consider the Insurance database given below, where the primary keys are underlined. Assume each…

A: i. select count (distinct *)from accidentwhere exists(select *from participated, personwhere…

Q: Give an SQL schema definition for the employee database of Figure 3.19.Choose an appropriate domain…

A: Given: Give an SQL schema definition for the employee database of Figure 3.19.Choose an appropriate…

Q: A database table is in 3rd normal form if A It is in 2d normal form (2NF) and in 1" normal form(INF)…

A: Actually, database is a used to stores the data/information.

Q: Consider the Student database schema given below. 1. Write SQL to Retrieve student id's and student…

A: The tables student and enrolled created and inserted data  The table student is: Table enrolled is:…

Q: The following relational schema forms part of an Employees database. The primary keys are underlined…

A: Actually, database is a used to stores the data\information.

Q: Question#1 For the database below we have one table representing a company's data on their products…

A: Pre-Requisites: The given table has the data for all orders, customers, product details all at one…

Q: QUESTION 4 Convert the following ER diagram into a relational database schema, be certain to…

A:

Q: For each table, identify the primary key and the foreign key(s). If a table does not have a foreign…

A: As per our policy, "Since you have asked multiple questions, we will solve the first question for…

Q: Give an SQL schema definition for the employee database of Figure 3.19.Choose an appropriate domain…

A: Data Definition Language (DDL): It is used for creating tables and other structures. They perform…

Q: The following relational schema forms part of an Employees database. The primary keys are underlined…

A: Question. The following relational schema forms part of an Employees database. The primary keys are…

Q: Discuss the alternative ways that normalization can be used to support database     design.…

A: Answer: There are so many alternative way to normalized databases design.

Q: Consider the following Books database which is used to keep track of books and their readers. Assume…

A: Given:

Q: 1. How many entities are there within the entire database? 2. How many attributes are there for each…

A: Here, the database name is ENROLLMENT. 1. An entity refers to the real-world object that can be…

Q: We have the following database schema:   Computer (vendor, model, machinetype) Model (num,…

A: 1. all the vendors who make laptop(s).  ∏vendorσmachine type="laptop"computer

Q: Subject - Fundamentals to Database Question 2 Based on the Table 5 and Table 6, write the SQL…

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Q: Consider the following relational database schema consisting of the four  relation schemas: i.…

A: Consider the following relational database schema consisting of the four relation schemas:i.…

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Q: Exercise 3.13 Consider the university database from Exercise 2.3 and the ER dia- gram you designed.…

A:

Q: QUESTION 2 Consider the database schema below. Fruit (ID: integer. Name: String (unique)) Vitamin…

A: EXPLANATION: The entity set that is utilized to uniquely identify an entity inside its entity set…

Q: Consider the following relational schema Voter (Voter_id, Voter_name, Age,Gender, constituency,…

A: Given: Consider the following relational schema Voter (Voter_id, Voter_name, Age,Gender,…

Q: Consider the relational database of Figure 3.19, where the primary keys areunderlined. Give an…

A: Inserting some record values in the works table, after the insertion the works table will appear as…

Q: The following relational schema forms part of an Employees database. The primary keys are underlined…

A: NOTE: As per our company guidelines we are supposed to answer only the first three sub-parts. Kindly…

Q: Company (CompnayID: integer, CompnayName: String (unique), address) Department (DepartmentID:…

A: Employee is a table with columns ID of integer type, name of String type and DepartmentID of integer…

Q: Consider the relational database of Figure 3.19, where the primary keys areunderlined. Give an…

A: The Structured Language Query (SQL) to find the ID, name, and city of residence of each employee who…

Q: Relational Database Consider the following relation: Invoice(Order_ID, Order_Date, Customer_ID,…

A:

Q: Consider the following relations: Students(snum: string, sname:string, major:string, level:string,…

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Q: Read the scenario carefully You have to propose and optimal database design in RDBMS for a super…

A: Solution : 1.Entities: Products table to store the information related to products. Customer table…

Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.